Upholstery machine



July 6 1926.

J. R. MILLAR UPHOLSTERY MACHINE Filed June 25, 1925 2 Sheets-Sheet 1INVENTOR .TO/l/V 1?.M/ZL-fl1? ATTORNEY July 6,1926. 7 1,591,927

J. R. MILLAR UPHOLSTERY MACHINE Fil d June 25, 1923 2 Sheets-Sheet 2Patented July 6, 1926,

umrao STATES 1,591,927 PATENT OFFICE.

JOHN R. HILLAR, OF OAKLAND, CALIFORNIA, ASSIGNOR T0 CALIFQQRNIA OOTTONMILLS COMPANY, OF OAKLAND, CALIFORNIA, A CORPORATION OF CALIFORNIA.

'UPHOLSTERY MACHINE.

Application fil ed June 25,

a My invention is an improvement in tlie method of manufacturing apadding, and the machine to form it. I

The invention relates particularl to the padding which is used inautomobile seats. The method now employed is toform each separate seatpadding into a plurality of padding receiving pockets after'which thepadding is inserted into said pockets. This method is very slowand'requires a large amount of labor.

The; object of my invention is to provide a" machine in which thecompleted seat, or back, is formed in an endless strip,-with the pocketsformed and the padding material in position in said pockets. This isaccomplished by forming the seat into longitudinal tubes over formingrollers, simultaneouslyinserting the padding'in said tubes, andstitching the seat between these tubes, thus holding it in position. Thepadded back or seat strip thus formed is afterwards cut into any desiredlength for the individual seat or back. I

Another object of my invention is to place a horizontal stitch betweenthe tubes, thus giving the. back greater strength in the stitches thanis possible in the ordinary chain in rollers.

or vertical stitch.

Fuiiher objects and advantages will be more specifically described andpointed out in the following detailed description.

In the annexed drawing in which my invention is illustrated, I haveshown the preferred form but it may also be embodied in other forms, andin this application I desire to cover my invention in whatever form itmay be embodied.

Figure 1 is a side elevation of my padding machine.

Figure 2 is a sectional view taken on the line 2'2 of Figure 1.

. Fig re 3 is'ia sectional view taken on the line 3-3 of Figure 1'.

Figure 4 is a fragmentary longitudinal sectional view through the intakeor form- Iteferring more particularly to the drawmg, the numeral 1indicates the base of my machine, upon which the various rolls andtables are mounted. If we take for exam le a seat or back in which thereare twe ve pockets in. width filled with padding, then twelve rolls ofpadding 2mare mounted upon a shaft 3, which is supported on brackets 41923. SeriaLNo. 647,511. I

rising from the base 1. A noll of surface material 5, such as leather,cloth, etc. of sufficient width to form the twelve pockets, is mountedupon supports 6'6 which rise from the base 1. x v

A roll of backing material 7, such as burlap, and of sufiicient width tocover the back of the pockets, is mountedaupon sup ports 8-'-8. I

A pair of superimposed forming rollers 9 and 10 are mounted forwardly ofthe rolls 2, 5 and 7, and are journalled in the supports 11-11. As. hereillustrated only three pockets are formed in the rollers 9 and 10,

but it is understood that any desired number may be formed by increasingthe width.

vthe thickness of the material'on the roll 5,

and the bottom of the roller 9, is spaced above the top of the tubes thethickness of the burlap on roll 7. The tubes 15 extend beyond therollers 9 and 10 and into the grooves 16 of a forming table 17. Thetable 17 is formed similar to the roller 10, and

.holds the material in she e as it is fed into the stitching device. Ries 18 are formed between the grooves 16 in a ignmentwlth the ridges 13onthe roller 10. 1

' Immediately in front, of the table 17 is positioned the stitchingmachine 19, which is of a well known construction, and places ahorizontal stitch through thesurface and back material between thepockets. The machine is provided with pairs of needles 20 which carrythe stitch as described.

Forwardly of the machine 19 are positioned a pair of feed rollers' 21and 22, which are journalled in supports 23- 23 and are suitablydriven-through a chaln 24-wh1ch extends over a sprocket 25 on the shaftof the roller 22. The rollers 21 and 22 pull the material through themachine and eject 1t therefrom at a constant speed.

The operation of my machine is as follows: strip of padding is fedthrough each of the tubes 15. The surface material the machine over thetubes and the ridges 1 through each of said deep 13 and 18 and grooves14' form it over the.

es in the surface material ready to be the machine 19. The

ton stitched thereto b adding complete y fills the pockets thus ormedand the sewing machine sews the tongues together as described,whichforms the seat or back complete. The padded seat or back coming outof the machine in an endless strip is cut into suitable lengths for theindividual seats.

If it is desired to have a flat backed padding with the stitches betweenthe bottom and the top instead of through the ridges, the meetingsurfaces of the lower and upper rollers would be shaped so as to guidethe surface and backing materials to a suitable typeof sewin machine. Inthis case the grooves 14 of t e upper roller could be eliminated and theen aging ridges 13 on the roller 10 flattene to contact with a flatsurface.

Having described my invention I claim 1. A padding machine ,com risintwo forming rollers, one of said ro lers aving deep grooves thereinseparated by ridgesi,

' and the other of said rollers being provi with shallow grooves adaptedto receive the crests of said ridges, a tube extendin ves, an meanswhereby a backing material and a surthrough each of said tubes andbetween the V backing and surface materials.

2. In apadding machine, a pluralit of rollers, one of said rollers havinsha low grooves therein, the other of said rollers havmg deep groovesseparated by ridges, the crests of the ridges extending into the shallowgrooves of the first mentionedrollers, and tubes extending through saiddeep grooves.

3. A padding machine comprising a plu rality of rollers, one, of saidrollers being provided with deep grooves,,a table having grooves thereinc'orres onding with the grooves in the roller an in 'ali ment with thesame, and tubes extending t rough said 'deepgrooves in the roller andterminating within the grooves in the table.

4. A padding machine comprising a plurality of rollers, one of saidrollers being provided with deep grooves, a table having grooves thereincorresponding with the grooves in the roller and in alignment therewith,andtubes extendin through said deep rooves in the roller an terminatingwithm the grooves in the'table, and means whereby a strip of of backingmaterial are caused to pm around saidtube, said means also serving as ameans to simultaneously ull a strip of padding through each of saitubes.

In testimony whereofI afiix my signature.

JOHN R. MiLLAR.

surface material and a strip

